Board Thread:Pokémon Help/@comment-28826236-20170706063538/@comment-27535813-20170707105330

Even if hydro pump Lycanroc was a thing, please don't ever run it especially with that 55 Sp.Atk base stat.

And yes, No Guard is the best ability Lycanroc-Midnight has to offer, and should also be the only ability you'd ever use in competitive battles(and adventure, unless you want the Out-of-Battle effects that the other 2 abilities offer).